Hi Charishma,
Thank you for contacting the Microsoft Community.
I am sorry to hear about your experience when you are just trying to take your exam. Allow me to provide the right support team that can assist you and provide additional help if needed.
Normally, you must reach out to your exam provider regarding your issue then to reschedule. They will create a separate case with a different reference ID and assist you from here. You may contact them to assist you with the availability of seats and have this updated over the phone. Please see the contact details below and pick your exam provider:
If you have already reached them, and in need of further assistance, kindly provide the Case ID along with your account information for verification, so we can have it escalated and investigated with the support team. Please reply to the private message I have initiated.
Additionally, since we value your feedback, to improve the services being offered, kindly provide your feedback or complaints by clicking this page.
I look forward to your response. Please note that if no response is received after two business days, the case will be closed and locked. After the case is locked, we will no longer be able to respond, even through Private Messages. Thank you.